baber/WOPTO huggingface dataset:
Patent CA-2037086-C (CA)
Title: Process for improving the thermal shock resistance of monolithic catalysts
Inventor: MERGNER BERND
IPC: B01J37/00
Filed: 1991-02-26
Granted: 1997-09-30
Abstract: Monolithic catalysts are improved in their thermal shock resistance if, before application of the catalyst components, the ceramic monolithic support is precoated with a fusible and burnable organic filler from a dispersion in very fine solid particles.  The support is heated beyond the melting point of the filler, the catalyst components are subsequently applied and the filler is then burnt off.
Patent CA-2043926-C (CA)
Title: Adhesive secondary blasting cone
Inventor: CARMICHAEL CALVIN WILLIAM
IPC: F42D3/00
Filed: 1991-06-05
Granted: 1996-05-14
Abstract: A shaped secondary blasting charge including a frustoconical container and a viscous adhesive explosive overpacked into the container. A concave cover accommodates the overloaded explosive which is removed at the blasting site. The container with the explosive is pressed against the object to be blasted causing the viscous explosive to intimately bond to the surface.
Patent CA-2049768-C (CA)
Title: Apparatus for recording compressed digital information to an optical disc
Inventor: MAEDA YASUAKI
IPC: G11B20/10
Filed: 1991-08-23
Granted: 2000-10-24
Abstract: An apparatus for recording compressed digitized information to an optical disc by reading the digital data into a memory for transient storage. The digital input data thus written into the memory are sequentially read out of the memory and into an encoder at a transfer rate faster than the input transfer rate where the digital data are arranged in discrete clusters of record units including cluster-linking groups such that each record unit can be interleaved independently and without affecting other record units. The interleaved record units are then recorded onto an optical disc. Reproduction of the record units from the optical disk is carried out b reversing the process.
Patent CA-2050610-C (CA)
Title: Catalysts, preparation process, and uses thereof
Inventor: AUVRAY PATRICK
IPC: C07C45/69
Filed: 1991-09-04
Granted: 1998-06-02
Abstract: New water-soluble rhodium and phosphine-based catalysts. The invention also relates to a process for the preparation of these catalysts and to their use.
Patent CA-2051513-C (CA)
Title: Vertical axis wind turbine
Inventor: DUESTERHUS ADOLF
IPC: F03D3/00
Filed: 1991-09-16
Granted: 1999-09-21
Abstract: A vertical shaft type windmill has multiple V-shaped balanced horizontal blades. Four removable arms are mounted in a center plate assembly off center from the shaft connecting the apex of the V-shaped blades. The wind interception area of the blades increases from a minimum near the center plate to near five times this minimum at the rotor perimeter where the outer wings are arced to a direction parallel to the plane of rotation. The blades have a curvature trailing the direction of rotation in order to receive wind from any direction. The whole system is rotatably mounted on a housing with two oil cups. The oil cups are with outer walls sloping toward the shaft to induce oil movement in the bearings.
Patent CA-2051606-C (CA)
Inventor: YOKOUCHI KISHIO
IPC: C04B35/16
Filed: 1991-09-17
Granted: 1996-08-27
Abstract: A multi-layer wiring board comprising a laminate of glass ceramic layers and conductor patterns, the glass ceramic layers being made of a glass ceramic comprising glass and ceramic particles dispersed therein, the glass ceramic layers further comprising hollow or porous silica glass spheres dispersed in the glass ceramic, the hollow or porous silica glass spheres being covered with a ceramic coating layer containing aluminum as a constitutional element.  This enables a crystallization of the silica spheres to be prevented, and thus a rapid increase of the thermal expansion coefficient and a formation of pores in the surface of the spheres are also prevented.
Patent CA-2051922-C (CA)
Title: Ultra high molecular weight copolymers of conjugated dienes and aromatic vinyl compounds
Inventor: KANG JUNG W
IPC: C08F4/00
Filed: 1991-09-20
Granted: 2003-12-02
Abstract: An ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000 are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated didne and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R°M and a 1,3-conjugated diene wherein R° is a hydrocarbyl group, M is an alkali metal, the mole ratio of R°M to 1-alkyne is about 3:1 and the mole ratio of conjugated dime to 1-alkyne is from about 2:1 to about 30:1.
Patent CA-2062052-C (CA)
Inventor: CHAILLOT GEORGES
IPC: H01R13/115
Filed: 1992-02-28
Granted: 2001-12-04
Abstract: Le procédé permet de fabriquer une borne de contact électrique d'une seule pièce en forme de cage. Pour cela on découpe un feuillard pour donner naissance à des flans suc- cessifs raccordés entre eux par une bande de liaison, en formant dans chaque flan des lignes d'amorce de pliage ; on forme et on cambre les parties en porte à faux destinées à constituer des contacts jusqu'à leur donner une saillie telle que, sur la borne terminée, les zones formant contact dépasseraient, à l'état libre, le plan médian de la borne d'une distance à ; on forme les rabats par pliage de façon à former un passage étranglé de largeur 2d et à ramener les zones formant contact en-deçà du plan médian d'une distance b, le cambrage et la forme données aux parties en porte à faux étant telles que d-b sont compris entre 0,3 et 0,5 mm et que les parties en porte à faux ne subissent pas de dé- formation plastique lorsque les zones de contact prennent leur écartement maximum ; on plie le flan à 180.degree. suivant deux des lignes d'amorce pour former les flancs internes et externes ; on replie les ensembles de deux flancs à 90.degree. pour former un plafond de la cage ; et on referme la cage par repliement.
Patent CA-2062571-C (CA)
Title: Fiber attachment means for integrated optical component
Inventor: VIAL JACQUES JEAN
IPC: G02B6/36
Filed: 1992-03-10
Granted: 2003-04-29
Abstract: An integrated optical component comprising at least one waveguide integrated into a substrate and connected to the end of an optical fiber which is attached to the substrate at said fiber end and in an region separated from said fiber end by a first drop of adhesive and a second drop of adhesive, respectively. The adhesive product which constitutes the first drop has a glass transition temperature located in a predetermined operating temperature range of the component, while the adhesive product which constitutes the second drop has a glass transition temperature located generally above this operating temperature range, thereby assuring the absorption of differential expansions in such a way as to maintain the optical continuity of the fiber/waveguide attachment and the mechanical strength of the fiber/substrate attachment.
Patent CA-2063371-C (CA)
Title: Selective etching of refractory metal nitrides
Inventor: JOLLY GURVINDER
IPC: H01L21/3213
Filed: 1992-03-18
Granted: 1996-09-10
Abstract: A method of selectively etching a refractory metal nitride film, with application to formation of TiN local interconnects for VLSI integrated circuits, and particularly a method of selectively etching TiN relative to a refractory metal silicide. The method comprises heating the substrate in a non-reactive gas; generating a plasma comprising chemically reactive halogen species having ion energies significantly below 100eV preferably by electron cyclotron resonance (ECR) excitation of a halocarbon containing gas; and exposing selected areas of the nitride film to the reactive halogen species. For etching TiN, preferred halocarbon containing gases are CF4 and C2F6. The substrate is preferably exposed to reactive ion species having energies less than 30eV, so that the energy of ions incident on the substrate is sufficient only to etch TiN, while the silicide is not significantly etched by the reactive species of the plasma. The etch selectivity is further enhanced during etching of the substrate at elevated temperatures in the range 100°C to 120°C.
Patent CA-2066303-C (CA)
Title: Coated optical fiber and method of producing the same
Inventor: HATTORI TOMOYUKI
IPC: B29C35/08
Filed: 1992-04-16
Granted: 1997-11-25
Abstract: A coated optical fiber of the invention is constructed by coating an energy beam curable resin onto the outer periphery of a wiredrawn optical fiber and curing the resin by radiating an energy beam to the resin to thereby provide a coating layer on the optical fiber.  The peak temperature of the mechanical loss tangent Tan .delta. of the energy beam curable resin prior to curing is 25°C or lower.
Patent CA-2066843-C (CA)
Title: Non-committed defibrillation/cardioversion system
Inventor: VAN HOFWEGEN LLOYD
IPC: A61N1/39
Filed: 1992-04-22
Granted: 2003-09-09
Abstract: An automatic implantable defibrillator/cardioverter having a non-committed defibrillation/cardioversion algorithm. The defibrillator/cardioverter includes an ECG amplifier with automatic gain control (AGC) which detects the electrical activity of the heart for analysis by a cardiac condition detector. Logic is provided which receives input from the ECG amplifier and the cardiac condition detector for analyzing the heart activity. The non-committed defibrillation algorithm sensing begins upon the determination of an arrhythmia. The capacitor is charged while the heart activity is simultaneously monitored. After the capacitor is charged, a check is made on the duration of the last detected R-R interval while so charging the capacitor, and a comparison is made between this R-R interval and a preset value. If the last R-R interval is greater than the preset value, a non-committing period is entered which lasts approximately 2 seconds. The purpose of the non-committing period is to allow detection to monitor the arrhythmia further before making the decision to discharge the capacitor or dump the charge internally. If any R-R interval detected during this interval is less than PCLL, this indicates that the arrhythmia has not reverted and the capacitor charge is delivered to the patients, synchronously with the second R-wave of the fast R-R interval. If no ,rapid interval is detected during this time, a post intervention (PI) monitoring routine is entered at the end of the non-committing period to further monitor cardiac activity and shock if necessary.
Patent CA-2068326-C (CA)
Title: Fluorinated poly(naphthyl ethers)
Inventor: MERCER FRANK W
IPC: C12N11/08
Filed: 1990-12-07
Granted: 2002-02-05
Abstract: A fluorinated poly(naphthyl ether) having a repeat unit of formula (I), wherein Y is (CF2)m, (a), (b), (c) or (d); m is an integer from 1 to 4, inclusive, and X is S, CO, SO2, O, P(C6H5)H. Such polymers are useful as low dielectric constant, low moisture absorption insulators for multilayered integrated circuit articles, especially in their crosslinked form.
Patent CA-2071962-C (CA)
Inventor: KARAPASHA NANCY
IPC: A61F13/49
Filed: 1991-01-31
Granted: 1994-09-20
Abstract: Compositions comprise absorbent gelling materials combined with high levels of odor-controlling agents by means of binders. The preferred particle form of the compositions is easy to handle, and is used in the manufacture of catamenials, diapers, bandages, and the like. The absorbent gelling material enhances the odor-controlling properties of the compositions by helping to control ammonia odors.
Patent CA-2082436-C (CA)
Title: Carbamates, their preparation and fuels and lubricants containing the carbamates
Inventor: MOHR JUERGEN
IPC: C08F8/30
Filed: 1992-11-09
Granted: 1999-05-18
Abstract: Carbamates having a long-chain N-alkyl radical, a process for the preparation of the carbamates in a conventional manner and fuels and lubricants which contain these carbamates as additives.
Patent CA-2082659-C (CA)
IPC: G01S17/931
Filed: 1991-04-10
Granted: 1999-03-09
Abstract: Procédé et appareil permettant la détection d'un objet (14) par l'émission d'un faisceau hertzien (18) et par la réflection consécutive par l'objet (14) d'une partie (20) dudit faisceau. La détection d'une matière particulaire d'objets (16) due à la réflection d'une partie (22) du faisceau émis (18) est réduite au minimum.
Patent CA-2083211-C (CA)
Title: Papermaker felt
Inventor: LEGGE ROBERT W
IPC: D21F7/10
Filed: 1992-11-18
Granted: 1996-07-09
Abstract: A papermaker felt that is formed in a conventional manner and the ends thereof being interconnected at a seam to form an endless construction.  Extruded monofila-ments are secured in a machine direction to the underside of the felt in spaced parallel relation and overlie the area of the seam, wherein the seam area is protected from abrasion and the spaces between the monofilaments define channels for expressing water therethrough in the use of the felt in the endless form thereof in the press section of a paper making machine.
Patent CA-2083333-C (CA)
Title: High dosage topical forms of collagenase
Inventor: STERN HAROLD
IPC: A61K35/00
Filed: 1992-11-19
Granted: 2000-05-30
Abstract: This invention provides pharmaceutical compositions for topical application containing high concentrations of the enzyme collagenase in non-aqueous excipients. The invention also provides a particular excipient, dextran, which is especially useful for admixture with collagenase and which can also be used to advantage with uother pharmaceutically active materials.
Patent CA-2091022-C (CA)
Title: Down-the-hole drilling machine
Inventor: EKWALL BERNDT
IPC: B25D17/06
Filed: 1993-03-04
Granted: 2005-06-07
Abstract: Down-the-hole drilling machine comprising a housing in form of a tube (1), a hammer piston (6) being movable to-and-fro in the tube and intended for impacting a drill bit (5). The hammer piston is at its ends provided with end sections in form of polygons with rounded corners(51, 52). These end sections are turned relative to each other an angle which is half as large as the angle between two adjacent corners.
Patent CA-2093617-C (CA)
Title: Hand-writable liquid crystal board set
Inventor: SATO MORIO
IPC: G02F1/1334
Filed: 1993-04-07
Granted: 1999-03-16
Abstract: The present invention is to provide a liquid crystal display device of externally charging type, including a screen which can be fabricated in large size and from the outside of which display and erasing operations can be repeatedly performed in a simple manner, and having an excellent memory retention performance of the recorded image and sufficient durability in practice. The present invention is also to provide a hand-writable liquid crystal board set being excellent in operativity, performances, safety, including the above liquid crystal display device as a liquid crystal board.    The liquid crystal display device of externally charging type in accordance with present invention, includes a layered structure comprising: in the following order, a conductive layer; a transparent high-electric resistance layer having a volume resistivity of 10 13 .OMEGA.~ cm or more in a 20 °C air at a relative humidity of 90%; a liquid crystal-dispersed polymer layer in which liquid crystal is finely dispersed in polymer matrix thereof and which has a volume resistivity of 10 13 .OMEGA.~ cm or more in a 20 °C air at a relative humidity of 90%; and a transparent insulator layer.    The hand-writable liquid crystal board set of the present invention comprises:   (A) a liquid crystal board made of the above liquid crystal display device of externally charging type, (B) display means for displaying recording images onto the board surface of the liquid crystal board, and erasing means for erasing the recorded images; and (C) a power source for generating a surface potential between the surface of the liquid crystal board and the conductive layer by the display means; wherein the display means employs a writing member electrically connected to one terminal of the power source which is connected at the other terminal thereof to the conductive layer; and the erasing means employs an erasing member electrically connected to the conductive layer.
Patent CA-2097123-C (CA)
Title: Wobble piston
Inventor: WOOD MARK W
IPC: F01P1/04
Filed: 1993-05-27
Granted: 1996-03-05
Abstract: An improved wobble piston for an air compressor. The piston has a head integrally connected to a connecting rod.  The connecting rod has a free end for connection to a rotating eccentric.  The piston head has an internal chamber.  Openings are formed through the piston head into the chamber on opposite sides of the connecting rod in a plane perpendicular to the eccentric axis.  The location of the chamber openings establishes a flow of cooling air through the chamber as the piston is reciprocated in a cylinder.
Patent CA-2108028-C (CA)
Inventor: CARRE BRUNO
IPC: D21H17/42
Filed: 1992-06-12
Granted: 1997-05-27
Abstract: A process for improved dewatering and retention in the manufacture of paper, where a retention agent containing anionic groups and being based on a polysaccharide or being an acrylamide-based polymer and an alkaline solution of an aluminate are added to the stock containing lignocellulose-containing fibres and optionally fillers. The pH of the stock prior to the addition of the aluminate should be below about 7 to obtain the desired cationic aluminium hydroxide complexes in the stock. The present process is cost effective and insensitive to the content of calcium in the white water.
Patent CA-2110978-C (CA)
Inventor: KELSEY DONALD R
IPC: C08G61/06
Filed: 1992-02-24
Granted: 2003-06-24
Abstract: A hard, infusible, crosslinked polymeric product free from detectable cyclopentadiene odor is obtained by contacting, un-der polymerization conditions, a mixture of Diels-Alder adducts of 4-vinylcyclohexene and cyclopentadiene and Diels-Alder oli-gomers of cyclopentadiene of at least 3 cyclopentadiene units with an olefin methathesis catalyst, preferably a catalyst comprising a di(alkyl-substituted phenoxy) tungsten halide, a triorganotin hydride and, optionally, a boron halide.
Patent CA-2115984-C (CA)
Title: The use of substantially fluorinated compounds as heat transfer agents
Inventor: BECKER WILFRIED
IPC: C09K5/08
Filed: 1994-02-18
Granted: 2006-05-02
Abstract: Non-flammable, substantially fluorinated compounds from the series of alkanes and/or dialkyl ethers are suitable as heat transfer agents, in particular as coolant or insulating medium, especially for evaporative cooling.      These compounds can also be employed in a mixture with small amounts of intrinsically flammable liquids, in which case lower alkanols are preferred.
Patent CA-2116127-C (CA)
Title: Method and apparatus for canceling spread-spectrum noise
Inventor: BRUCKERT EUGENE J
IPC: H04B1/7107
Filed: 1993-06-14
Granted: 1999-03-16
Abstract: A spread-spectrum noise canceller (182) is provided. A received phase and a received amplitude for a first (216) and a second (236) component of a received spread-spectrum signal (200) is determined. The second component (236) is structurally similar to the first component (216), but differs by being received at a different time, being transmitted along a different path, or having a different phase. In addition, the spread-spectrum signal (200) includes a first and a second known signal. A portion of a spread-spectrum noise signal in the received signal (200) is canceled by generating an estimated signal (270) by spreading (260) the second known signal at the second component received phase (224) with the first known signal at the first component received phase (204) and adjusting a gain (268) of an integrated form of the spread second known signal as a function of the received amplitudes of the first (216) and the second (236) components. Subsequently, the second known signal is processed out of the received spread-spectrum signal (200) by subtracting (166) the estimated signal (270) from a demodulated form (216, 236) of the received spread-spectrum signal (200).
Patent CA-2116156-C (CA)
Title: Information recording and reproducing apparatus
Inventor: HAYASHI HIROSHI
IPC: G06K7/10
Filed: 1994-02-22
Granted: 1996-09-10
Abstract: An  information  recording  and  reproducing apparatus is disclosed which prevents the bearing surface of an auxiliary bearing of a card carriage in sliding contact with an auxiliary guide rail from being locally worn.  A main guide rail and the auxiliary guide rail are spaced in the same plane.   The axis of the auxiliary guide rail is oblique at a predetermined very small angle to  the  axis  of  the  main  guide  rail.   The  auxiliary bearing has a bearing bore having a slot-shaped cross section.  Portions of the bearing surface of the bearing bore which are in contact with the auxiliary guide rail are displaced transversely to the direction of the stroke of the card carriage during the stroke.
Patent CA-2120095-C (CA)
Inventor: HIETALA ALEXANDER W
IPC: H03D1/02
Filed: 1994-03-28
Granted: 1999-02-16
Abstract: A TC controlled RF signal detecting circuitry (211) used in the output power control circuit of a TDMA RF signal power amplifier includes positive coefficient current source (303) producing current I+, negative coefficient current source (305) producing current I-, and current mirror (301) for summing currents I+ and I- to produce substantially identical compensated mirror currents Im1 and Im2. Anti-clamping current mirror (309) mirrors current Im2 to produce compensated currents Ia1 and Ia2, which are applied to and bias a Schottky diode coupled in series to a resistor network in each leg of diode detector (311). Schottky diode (431) in one leg of diode detector (311) half-wave rectifies RF feedback signal (212) to produce temperature and voltage compensated power level signal (229), which has a DC level proportional to the output power level of RF output signal (214).
Patent CA-2120823-C (CA)
Title: Metabolic analyzer
Inventor: HOWARD CHARLES P
IPC: A61B5/087
Filed: 1994-04-07
Granted: 2005-03-08
Abstract: A metabolic rate analyzer is provided comprising a CO2 detector, an O2 detector, a flow resistance, a differential pressure transducer, a solenoid-actuated metering valve for producing a volumetrically-proportional sample of respired gas, a vacuum regulator for receiving the sample, a pump for drawing the sample from the vacuum regulator and a processor for periodically sampling the differential pressure signal to provide a flow signal, to modulate power applied to the solenoid-actuated flow proportioning valve and to provide a measure of the total volume of respired gas. The processor correlates the total volume of respired gas, O2 content and CO2 content to provide a measure of metabolic rate. Flow is recycled between the pump and the regulator valve to provide a source of mixed respired gas for analysis and digital integration of the flow signal provides a measure of the total volume of respired gas. A pulse generator driven by the microprocessor varies the frequency of pulses applied to the metering valve and the pulse width to provide volumetrically-proportional sampling and to control the effective sample volume of the analyzer, respectively. The processor determines the slope of the flow signal and increases the periodic sample rate of the pressure signal when slope is increasing and decreases the periodic sample rate when slope is decreasing to provide derivative augmentation of the sample period.